The Audemars Piguet Royal Oak Perpetual Calendar 41 Skeleton Ceramic (ref. 26579CS.OO.1225CS.01) is a men's sports watch with a 41 mm octagonal case in ceramic. It has a black and skeletonized dial under sapphire crystal.
It is powered by the self-winding mechanical calibre AP5134 with a power reserve of 40 hours. Functions: Perpetual calendar, day of the week, month, moon phases, date. Water-resistant to 100 m. The watch is fitted with a Royal Oak Ceramic bracelet with a folding clasp in titanium.
This example is in mint condition, and comes with the original box and papers.
